diff --git a/pkgs/development/python-modules/hass-nabucasa/default.nix b/pkgs/development/python-modules/hass-nabucasa/default.nix
index b3fe9e7cb59e..687a04b8846d 100644
--- a/pkgs/development/python-modules/hass-nabucasa/default.nix
+++ b/pkgs/development/python-modules/hass-nabucasa/default.nix
@@ -1,7 +1,6 @@
 { lib
 , acme
 , aiohttp
-, asynctest
 , atomicwrites-homeassistant
 , attrs
 , buildPythonPackage
@@ -44,7 +43,6 @@ buildPythonPackage rec {
   doCheck = lib.versionAtLeast pytest-aiohttp.version "1.0.0";
 
   nativeCheckInputs = [
-    asynctest
     pytest-aiohttp
     pytestCheckHook
   ];